| 叠前密度反演方法研究 |
| |
| 引用本文： | 冯清源. 叠前密度反演方法研究[J]. 中州煤炭, 2019, 0(6): 57-61. DOI: 10.19389/j.cnki.1003-0506.2019.06.012 |
| |
| 作者姓名： | 冯清源 |
| |
| 作者单位： | （神华地质勘查有限责任公司，北京 102209） |
| |
| 摘 要： | 常规叠前三参数反演存在严重的病态性，直接获取地层密度信息存在难度。通过理论分析阐述了叠前密度反演的难点及可行性，认为大偏移距地震资料是实现密度反演的前提，多波联合反演能够有效提高密度提取的稳定性。同时，根据楔状模型试算结果对比，总结了影响叠前密度反演精度的关键因素。
|
| 关 键 词： | 密度反演 楔状模型 大偏移距 多波 信噪比 叠加次数 速度模型 约束条件 |
Research on prestack density inversion method |
| |
| Feng Qingyuan. Research on prestack density inversion method[J]. Zhongzhou Coal, 2019, 0(6): 57-61. DOI: 10.19389/j.cnki.1003-0506.2019.06.012 |
| |
| Authors: | Feng Qingyuan |
| |
| Affiliation: | （Shenhua Geological Exploration Co.，Ltd.，Beijing 102209，China） |
| |
| Abstract: | Conventional prestack three-parameter inversion has serious morbidity，and it is difficult to obtain formation density information directly.The difficulty and feasibility of prestack density inversion were expounded through theoretical analysis.It was considered that large offset seismic data was the premise of density inversion，and multi-wave joint inversion can effectively improve the stability of density extraction.At the same time，the key factors affecting the accuracy of prestack density inversion were summarized according to the comparison of the results of wedge model test calculation. |
| |
| Keywords: | density inversion wedge model long offset multi-component S/N ratio partial stack number velocity model constraints |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《中州煤炭》浏览原始摘要信息 |
|
点击此处可从《中州煤炭》下载免费的PDF全文 |
